Metabolic pathways of steroids in insects.
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Animals↗
Biomedical subjects
M J Thompson
Publications and source records attributed to M J Thompson.
Alpha-ecdysone and 20-hydroxyecdysone from frass of the tobacco hornworm, Manduca sexta (L.).
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Aluminum↗
The metabolism of 4- 14 C-22, 25-bisdeoxyecdysone during larval development in the tobacco hornworm, Manduca sexta (L.).
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Animals↗
Pteridines. XXVI. Preparation and properties of some 3,4- and 5,6-dihydropteridines.
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Oxidation-Reduction↗
Identification of fucosterol as a metabllite and probable intermediate in conversion of beta-sitosterol to cholesterol in the tobacco hornworm.
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Animals↗
Synthesis and biological activity of 5 beta-hydroxy analogs of alpha-ecdysone.
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Ecdysone↗
The synthesis and the mass and nuclear magnetic resonance spectra of side chain isomers of cholesta-5, 22-dien-3-beta-ol and cholesta-5,22, 24-trien-3-beta-ol.
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Chromatography, Gas↗
Synthesis of analogs of alpha-ecdysone. A simplified synthesis of 2-beta, 3-beta, 14-alpha-trihydroxy-7-en-6-one-5-beta-steroids.
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Cholestanes↗
Ecdysones and synthetic analogs: Molting hormone activity and inhibitive effects on insect growth, metamorphosis and reproduction.
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Animals↗
22-trans-cholesta-5,22,24-trien-3-beta-OL -- an intermediate in the conversion of stigmasterol to cholesterol in the tobacco hornworm, Manduca sexta (Johannson).
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Animals↗
Regulations, standards, and guides pertaining to medical and dental radiation protection--an annotated bibliography.
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Bibliographies as Topic↗
3-beta-hydroxy-24-norchol-5-en-23-oic acid--a new inhibitor of the delta-24-sterol reductase enzyme system(s) in the tobacco hornworm, Manduca sexta (Johannson).
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Animals↗
Insect hormones: alpha ecdysone and 20-hydroxyecdysone in bracken fern.
The two major molting hormones of insects, alpha ecdysone and 20-hydroxyecdysone, were isolated in crystalline form from dry pinnae of the bracken fern, Pteridium aquilinum (L.) Kuhn. Three unidentified substances with molting hormone activity were also detected. Bracken is the first plant found to contain both of the major insect ecdysones, and it is the first known plant source of alpha ecdysone.
Chromatography, Thin Layer↗
Ecdysones and analogs: effects on development and reproduction of insects.
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Animals↗
Desmosterol, an intermediate in dealkylation of beta-sitosterol in the tobacco hornworm.
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Alkylation↗
Synthesis of delta-7-coprostenol and its identity with the sterol formed by the reduction of 7-dehydrocholesterol by intestinal microorganisms.
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Animals↗
Separation of 24- and 25-dehydrocholesterols; and the impure state of commercial desmosterol preparations.
Chromatographic methods for the separation of 24- and 25-dehydrocholesterols are described. The purities of three commercial samples of 24-dehydrocholesterol examined by thin-layer and gas-liquid chromatography were only 42, 79, and 80%, respectively; a commercial sample of radioactive 24-dehydrocholesterol was shown to contain 40% 25-dehydrocholesterol.
Chromatography, Gas↗
Juvenile hormone: identification of an active compound from balsam fir.
A sesquiterpenoid ester with high juvenile hormone activity for Pyrrhocoris apterus (L.) was isolated from balsam fir, Abies balsamea (L.) Miller, and identified as the methyl ester of todomatuic acid.
Animals↗